Calculating machine



Aug. 30, 1927.

C. H. STUIVENBERG CALCULATING MACHINE Filed Feb. 8, 1925 km 2 w 3 L0 g n m S 4 s EEECECCECC A a; om BS A TTORNEYS.

Patented Aug. 30, 1927.

UNITED .STATES PATENT OFFICE.

CORNELIS HENDRICUS STUIVENBERG, F AMSTERDAM, NETHERLANDS, ASSIGNOR,

BY MESNE ASSIGNMENTS, TO NAAMLOOZE VENNOOTSGHAP KAMATEG, OF AMSTER- DAM, NETHERLANDS.

CALCULATING MACHINE.

Application filed February 8, 1923, Serial No. 617,814, and in the Netherlands February 8, 1922.

The present invention relates to improvements in apparatus for adding and printing, in which the adding and printing is effected by means of cards, which are provided withperforations corresponding to the amounts to be added. In machines of this kind, a certain pin can pass through the card corresponding to the positionof a perforation,

' which brings out a stop also corresponding to the number. The movement of the printing types is released over the Whole length and takes place under the action of a spring. Owing to the position of the stop, the movement is limited in such a manner that the type corresponding to the number will be positioned opposite the printing rollers, and that the adding mechanism, which is put into operation during the return motion, will be turned only by a number of teeth corresponding to the number of the numeral printed.

The disadvantage of this arrangement is, that the movement of the types, (and consequently the movement of the adding 2 mechanism) owing to its being under the action of a spring, is dependent on the smooth working of the, great number of moving parts in the machine. It has been proved,

that it is only necessary for there to be a slight disturbance in the smooth running of the machine for causing false impressions to be made and for the adding to be incorrect. More particularly as there is no check on the" internal working of the apparatus, it is exceedingly difiicult to find an error that has crept in, in-this manner.

According to the present invention the types are operated positively in correspondence with theposition of the perforation in the card. Not only is the above mentioned drawback entirely avoided in this manner, but the great advantage is obtained, that the printing can take place on the card itself as well, which gives a very effective check on the correct working of the apparatus. A

further advantage consists in a considerable reduction of the number of moving parts,

whereby the reliability of the machine is considerably enhanced.

' drawing a construc- In the accompanying tional example of the invention is shown, 1

in which Fig. 1 is an elevation of the machine.

that is, that adding only takes place for one column of figures. By the various subsidiary parts being arranged parallel to one another, the same device'can be used for an addition comprising a plurality of columns. In the drawing only those subsidiary parts are shown, which are necessary for explaining'the invention.

The types are indicated by the numerals 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9, while it is assumed in the present case that the card 10 is provided with one perforation corresponding to the numeral 5. The card 10 is laid on a plate 11, which is provided with ten recesses which are indicated by the numerals 0', 1, 2', 3, 4', 5', 6', 7', '8' and 9, in correspondence with the types. The card 10 is laid on the plate 11 in such a manner that the back edge rests against a projecting part 12 of the plate 11. The plate 11 is-thereupon moved in the direction shown by the arrow (to the right), the amount of this movement always being the same and the plate at the end of the movement occupying the position shown in broken lines. The plate thereupon returns to the initial position. 7

On the plate 11 isfixed a cross-piece 13, which in the initial position of the plate presses against a double-armed lever 14, which is pivoted on a pin 16, whereby the horizontal arm of the lever raises the pin 15 against the action of a spring 17. On the plate 11 being moved in the direction of the arrow, the cross-piece 13 recedes from the lever 14 and the spring 17 presses the pin 15 down until the latter strikes the card 10. When the plate 11 has moved so far that the perforation for the numeral 5 is under the pin 15, the spring 17 will press the pin 15 through this perforation into the recess 5'. As soon as the edge of the recess reaches the pin 15, the latter will be carried along and the whole frame 18, with which the pin 16 is connected, will take part in the movement of the plate 11- for a distance corresponding to the osition of the perforation in the card. he frame 18, which, according to the present constructional example, is provided in two places with the sets of type 9, is guided y the pins- 19. When the late 11 has reached its extreme position, he types with a the numerals will be in the path of the type hammers 21 and ,22, both 1n the case of the printing rollers and of the card 10. The movements of the plate 11 are transmitted in such a manner as combined reciprocating and rotar movements to the shafts 23 and 24, on which the arms and 26 are mounted, that, with the plate 11 in its extreme right hand position, the type hammers.21 and 22 can move freely under the action of the springs 27 and 28. ,This movement is however prevented by the arms 29 and 30, which engage with'hooks 31' and 32,'behind a pawl on the type hammers, until, on the plate 11 reaching its extreme position, the arms 29 and are raised. At this moment the hammers21 and 22 will therefore strike the t pes 5, which are capable of moving in the rame 18 against the action of springs, the numeral 5 thus bein printed on the printing rollers and on t e card. At this moment the adding wheel 33 is raised until its teeth engage 1n the teeth 34 of the frame 18.

tial position the cams, which Durin the return movement of the plate 11', whic now takes place, the movements are as follows (a) The frame 18 is carried back by the same distance, at which the types also return into the initial position.

(b) The adding wheel 33 is rotated by the teeth 34 by a number of teeth corres nding to the movement of the frame 18. y this means the number 5 is added on this wheel.

(a) On the frame 18 having returned to its initial position, the pin 15 is raised during the further movement of the plate 11 and slides alon the card 10 until the cross-piece 13 stri es the lever 14. This lever strikes against the spring 17 .and raises and arrests the pin 15.

(d) The arms 25 and 26, which, corresponding to the movements of the late 11, perform a reciprocating motion at out the shafts 23 and 24, carry the type hammers 21 and 22 along with them during the return movement.

(e) On the plate 11 returning to its iniare allowed by the 'arms 29 and 30 to rotate, have again come into siich a vposition that the said arms are released again, whereby, through the engaging of the hooks 31 and 32, the t e hammers are arrested, while the addir ig wheel 33 is again removed from the teeth 34.

The card 10 may thereupon be removed from the apparatus and it is possible to check at once on this cardwhether the required number h been printed. The entire] positive 0 num er being printed on the printing. rollers [and the wheel .33 having added this number.

In order that the arts may act properl a small amount of c earance must obvious y be left between the pin 15 and the recesses 0'9' of the plate 11.-, This clearance might however causethe position of the types at the moment of rinting, that is, when the plate has reached its extreme right hand position, to be not always and everywhere exactly alike and the printing not always to be in a straight line. In order to obviate this drawback, a second arm 35 is mounted on a shaft 23, which is alsomoved to and fro. During this movement a in 36 on the arm 35 moves through a slot 3 in a bar 38.;

The bar 38 is rotatably connected to a bar 39, which is rotatable about a fixed shaft 40. The length of the slot 37 is such that, at the end of the movement, the pin 36 willcarr the bar 38 along with it and the bar 39 wi 1 be turned about the shaft 40, a stop 41 on the said bar, the shape of which corresponds exactly to the teeth of the rack 34, being ressed into the space between said teeth. y adjusting this lever transmission it is easy to cause the stop 41 to bring the rack 34 at this moment into the correct position for' all the columns and consequently the types as well, which lie' in the path of the type hammers. The im ressions will then be'in an exactly straight ine and exactly at the place requlred. The stops 41 rovlded for the various columns may all bar corresponding to the said teeth.

Since, at the end of the forward movement all the type hammers are released by means of the arms 29 and 30 being lowered and ralsed. there would always be as many hammers in operation as there are columns inthe machine, and in instances where numbers of a few digits are to be rinted, certain' ofthe type hammers wil print only the numeral 0. It is preferable, however, that no more figures should be printed than there are numerals in the number.

For this purpose for every column inthethis manner releases the type hammers, ow-

ing to the lever 43 being turned around the shaft 42. For this purpose each lever 43 is trol ensures the same.

e on a common bar, in which case they may form a provided with a lug 61,- which, on the said lever turning also engages and carries. along with it the lever for a column having a lower base number. By this means the type hammers for all columns having a lower base number than the highest base number to be printed are released. Hence, for this column the numeral can be printed straight away. In the case of the higher base numbers, however, no printing will take place as the corresponding type hammers are locked by the lever 43.

In the arrangement described, on the plate 11 moving back, the frames 18 are immediately carried along by means of the pins 15, which have penetrated the recesses 1n the plate 11 through the perforations. The said pins are then drawn from the recesses and through the card, as soon as each frame 1.8 has returned into its initial position. During this operation it is possible, however, that the card may become damaged, if the pin should strike against the edge of the perforation in the card. In order to prevent this, the plate is given not only a to-and-fro motion but also an upand-down motion. When the plate 11 has reached its extreme right-hand position, where the printing takes place, it will move downwards with the card lying on it until the pins 15 are quite clear of the recesses in the plate 11 and the perforations in the card 10. On the plate 11 moving back, the crosspiece 13 will strike against the lever 14, causing the latter to raise the pin 15 against the action of the spring 17 and to arrest it. This causes the lever to be rotated about the shaft 16 and the lever to be pressed against the frame 18, the latter being carried along by the continued return motlon of the plate 11. When the plate 11 has completed its return motion, all the frames 18 will have returned into the initial position. As regards the downward movement of the plate 11 in the extreme right-handposition, after a new card 10 has been placed on it, an up- -ward movement of the plate 11 must take place before the forward movement begins.

Instead of letting the card 10 take part in the backward movement of the plate 11 and for removing the card from the apparatus after the entire movement has been completed, the card may be held fast, as soon as the'plate 11 has reached its extreme righthand position and thus return without the card. Means must be provided for expelling the card when in this position. A suitable mechanism for this purpose is shown in Figure 2. When the plate 11 has completed its movement to the right, the card 10is passed under leaf-springs 48 fixed to the casing of the apparatus, which cause the card to be pushed between the sets of double springs 49 and 50, also fixed to the casing.

mounted on the shaft 53. On the rame 54 rollers 55 and 56 are mounted, of which the rollers 55 are driven by means of awheel 57 mounted on the shaft 53 in the direction shown by an arrow in Figure 2. The shaft 53 itself is given its rotary motion by a wheel 58, which is kept continuously rotating while the machine is being used.

During the return movement of the late 11 the spring 52 draws the frame 54 ack until the set-screw 59 in the said frame strikes against the cam 60. This cam is so constructed that at the moment, in whichthe plate reaches its extreme right-hand position and therefore all the other parts return into their initial position, the set-screw 59 will be located opposite a part having a smaller radius. In this position the springs 52 can draw the frame 54 still further back, the set-screw 59 taking up the position shown in dotted lines. The rollers 55 and 56 will be moved so far in the direction of the card that they can just grip its extreme edge. The card willthen be carried along between the rollers and be ejected from the machine.

WVhile in the above description, mention is only made of types provided with numerals, the apparatus may equally well be used for printing letters and generally in apparatus for such work.

- \Vhat I claim is 1. In a tabulating machine adapted to take data from perforated cards, movable frames, sets of type supported by said frames, a plate movable relatively to said frames and consisting of a support for a perforated card, and means adapted to enter a perforation in a card supported on the plate during move ment of the latter whereby to couple the frames with the plate for simultaneous movement. .j

2. In a tabulating machine adapted to take data from perforated cards, movable frames, sets of type supported by said frames, a plate movable relatively to said frames and consisting of a support for a perforated card, and means adapted to enter a perforation in a card supported-on the plate during movement of the latter whereby to couple the frames and the plate for simultaneous movement, said means'including a spring actuated pin carried by the frame.

3. In a tabulating machine adapted to take data from perforated cards, movable frames, sets of type supported by said frames, a plate movable relatively to said frames and conslsting of a su port for a perforated card, and means a apted to enter a perfotake data from per ter a perforation in a card ration in a card supported," on. the plateduring movement of the latterj whereby to couple the frames with the plate. 91 simultaneous movement said means including a spriizlg actuated pm normally rpjected in t e irection of the plate, an -means coactin I with said pin when the plate is in initia position to retract said pin to inoperative position. 1

4. In a. tabulating machine adapted to takedata from perforated cards, movable frames, sets of type supported by said frames, a plate movable relatively to said frames and consistin of a su port for a perforated card, an means a apted to enter a perforation in a card supported on the plate during movement of the latter whereby to couple the frames with the plate for simultaneous movement, actuating means for the sets of type and aligning means for the frames actuated'by the type actuating means.

5. In. a tabulatin machine adapted to orated= cards, movable sets of type supported by said frames, a plate movable relatively to said frames and consisting of a support for a perforated card, and means adapted to ensupported on the plate during movement of the latter whereby to couple the frames with the plate for simultaneous movement, actuating means for the sets of type and locating means for the frame actuated by the t pe actuating means said locating means inc uding a plurality of recesses in the frames and a member movable about a fixed axis actuated by the type actuating means and adapted to enter one of the recesses. 1

6. In, a tabulating machine adapted to take data from perforated cards, movable frames, sets of type supported by said frames, a plate movable relatively to said frames and consisting of a support for a perforated card, and means adapted to enter a perforation in a. card supported on the plate durin movement of t e latter whereby. to coup e the frames with the plate for simultaneous movement, and means for moving the plate laterally away from the frames as said plate and frames approach the limit of their movement.

7. In a tabulating machine adapted to take data from perforated cards, movable frames, sets of type sup orted by said frames, a plate movable re atively to said frames,

7 frames and consisting of a support for a perforated card, and means adapted to enter a perforation in a card supported on the plate during movement of the latter whereby to perforation in a locking member to f couple the frames with the plate for simultaneous movement, said plate and frames being mountedfor reciprocal movement and said frames being adapted to have their extent of movement varied according to the location of the perforations in the cards supported on the plate, means acting during the movement of the frames in one direction to actuate type. y

8. In a tabulating machine adapted to take data from perforated cards, movable frames, sets of type supported by said frames, a plate movable relatively to said frames and consisting of a support for a perforated card, and means adapted to enter a card supported on the plate during movement of the latter whereby to couple the frames with the plate for simultaneous movement, said plate and frames bein mounted for reciprocal movement an said frames being adapted to have their extent of movement varied a cording to the location of the perforations in the cards suported on the plate, means acting during t e movement of the frames in one direction to actuate type, means acting as the plate approaches the limit of its initial movement to gri p a perforated card supported therein and prevent the latter from returningto initial position to the plate, and means operating as the plate returns to its initial position to engage and eject the card.

9L In a tabulatin machine adapted to take data from perforated cards, movable frames, sets of type supported by said frames, a late movable relatively to said frames an consisting of a support for a perforated card, and means adapted to enter a perforation in a card supported on the plate during movement of the latter wherey to couple the frames with the late for simultaneous movement, said p ate' and frames bein mounted for reciprocal movement and said frames being adapted to have their extent of movement varied according the type actuating means engaged and retained in locking position by the frames while the latter occu y and means on said rames coacting on said release the latter when the frames are moved out of initial position.

their initial position .In testimony whereof I have signed my name to this specification.

CORNELIS HENDRICUS STUIVENBERG. 

